Bug fixes

Update queue workers to update files as need be + fix an isset issue

Updates:

Issue #2998803 by lexsoft, lexsoft: Remove sourceMappingURL from CSS files

Issue #2998768: Background color not displaying on links

This is a minor maintenance release. The only new feature is the support of configuration by language, using core's Config Translation module.

Client ID and client secret weren't saved properly.

Back To Top 8.x-1.0 Stable Release as planned in issue 2980718 (https://www.drupal.org/project/back_to_top/issues/2980718). Version 1.0 includes:

Commits:
3a57bcb on 8.x-1.x
3d1abe9 on 8.x-1.x

Adding drush support for "Views data export" module